from datetime import datetime
from typing import Any, Literal, Optional

from pydantic import BaseModel, Field


MonitorPolicyMode = Literal["inherit", "include", "exclude"]
AvailabilityWindow = Literal["24h", "3d", "7d"]


class DashboardScope(BaseModel):
    city: Optional[str] = None
    client: Optional[str] = None
    object_ids: list[int] = Field(default_factory=list)
    tag_ids: list[int] = Field(default_factory=list)


class DashboardCheckDefinitionRead(BaseModel):
    check_key: str
    enabled: bool
    interval_sec_default: int
    plugin_action: str
    categories: list[str]
    timeout_sec: int
    concurrency: int
    updated_at: datetime

    model_config = {"from_attributes": True}


class DashboardCheckDefinitionPatchItem(BaseModel):
    check_key: str
    enabled: Optional[bool] = None
    interval_sec_default: Optional[int] = None
    categories: Optional[list[str]] = None
    timeout_sec: Optional[int] = None
    concurrency: Optional[int] = None


class DashboardObjectOverrideRead(BaseModel):
    object_id: int
    check_key: str
    enabled_override: Optional[bool] = None
    interval_sec_override: Optional[int] = None
    categories_override: Optional[list[str]] = None
    updated_at: datetime

    model_config = {"from_attributes": True}


class DashboardObjectOverridePatchItem(BaseModel):
    object_id: int
    check_key: str
    enabled_override: Optional[bool] = None
    interval_sec_override: Optional[int] = None
    categories_override: Optional[list[str]] = None


class DashboardObjectPolicyRead(BaseModel):
    object_id: int
    mode: MonitorPolicyMode
    updated_at: datetime

    model_config = {"from_attributes": True}


class DashboardObjectPolicyPatchItem(BaseModel):
    object_id: int
    mode: MonitorPolicyMode


class DashboardTagPolicyRead(BaseModel):
    tag_id: int
    enabled: bool
    updated_at: datetime

    model_config = {"from_attributes": True}


class DashboardTagPolicyPatchItem(BaseModel):
    tag_id: int
    enabled: bool


class DashboardPolicyResponse(BaseModel):
    object_policies: list[DashboardObjectPolicyRead]
    tag_policies: list[DashboardTagPolicyRead]


class DashboardChecksResponse(BaseModel):
    checks: list[DashboardCheckDefinitionRead]
    object_overrides: list[DashboardObjectOverrideRead]


class DashboardRunRequest(DashboardScope):
    force: bool = True


class DashboardRunResponse(BaseModel):
    accepted: bool
    running: bool
    detail: str


class DashboardMonitorStatus(BaseModel):
    status: str
    run_type: Optional[str] = None
    scope: Optional[dict[str, Any]] = None
    started_at: Optional[datetime] = None
    finished_at: Optional[datetime] = None
    last_success_at: Optional[datetime] = None
    last_error: Optional[str] = None
    last_counts: Optional[dict[str, Any]] = None

    model_config = {"from_attributes": True}


class DashboardObjectCheckSummary(BaseModel):
    status_counts: dict[str, int]
    last_checked_at: Optional[datetime] = None
    max_age_sec: Optional[int] = None


class DashboardObjectSummary(BaseModel):
    object_id: int
    object_name: str
    city: Optional[str] = None
    client: Optional[str] = None
    allowed: bool
    monitor_mode: MonitorPolicyMode
    inclusion_reason: str
    device_count: int
    checks: dict[str, DashboardObjectCheckSummary]
    health_score: Optional[float] = None
    has_baseline: bool = False
    recovered_count: int = 0


class DashboardHomeSummaryResponse(BaseModel):
    generated_at: datetime
    scope: DashboardScope
    totals: dict[str, int]
    checks_meta: list[DashboardCheckDefinitionRead]
    objects: list[DashboardObjectSummary]
    problem_objects: list[DashboardObjectSummary]
    included_count: int
    excluded_count: int
    included_objects: list[DashboardObjectSummary]
    excluded_objects: list[DashboardObjectSummary]


class DashboardDeviceNOCItem(BaseModel):
    device_id: int
    object_id: int
    rack_id: Optional[int] = None
    rack_name: Optional[str] = None
    ip: str
    hostname: Optional[str] = None
    category: str
    role: Optional[str] = None
    status: Optional[str] = None
    monitor_enabled: bool
    last_seen: Optional[datetime] = None
    last_ping_ms: Optional[int] = None
    ping_status: str
    ping_checked_at: Optional[datetime] = None
    ping_age_sec: Optional[int] = None
    ping_fresh: bool
    disk_status: Optional[str] = None
    disk_max_pct: Optional[float] = None
    has_problem: bool
    baseline_status: Optional[str] = None
    baseline_suppressed: bool = False
    recovered: bool = False


class DashboardBaselineItem(BaseModel):
    device_id: int
    baseline_status: str
    saved_at: datetime


class DashboardBaselineResponse(BaseModel):
    object_id: int
    count: int
    items: list[DashboardBaselineItem]


class DashboardObjectSummaryResponse(BaseModel):
    generated_at: datetime
    scope: DashboardScope
    object: DashboardObjectSummary
    totals: dict[str, int]
    checks_meta: list[DashboardCheckDefinitionRead]
    top_problem_devices: list[DashboardDeviceNOCItem]


class DashboardObjectDevicesResponse(BaseModel):
    generated_at: datetime
    scope: DashboardScope
    object_id: int
    devices: list[DashboardDeviceNOCItem]


class DashboardAvailabilityPoint(BaseModel):
    bucket_start: datetime
    bucket_end: datetime
    availability_pct: Optional[float] = None
    samples: int
    online: int
    offline: int


class DashboardAvailabilityInterval(BaseModel):
    status: str
    started_at: datetime
    ended_at: datetime
    duration_sec: int


class DashboardDeviceAvailability(BaseModel):
    device_id: int
    ip: str
    hostname: Optional[str] = None
    availability_pct: Optional[float] = None
    samples: int
    online: int
    offline: int
    last_checked_at: Optional[datetime] = None
    last_status: Optional[str] = None
    last_ping_ms: Optional[int] = None
    series: list[DashboardAvailabilityPoint]
    intervals: list[DashboardAvailabilityInterval]


class DashboardObjectAvailabilityResponse(BaseModel):
    generated_at: datetime
    object_id: int
    window: AvailabilityWindow
    start_at: datetime
    end_at: datetime
    bucket_sec: int
    overall_availability_pct: Optional[float] = None
    overall_series: list[DashboardAvailabilityPoint]
    devices: list[DashboardDeviceAvailability]
    insufficient_data: bool